Inferring the time-zones of prefixes and autonomous systems by monitoring game server discovery traffic

  • Authors:

  • Mattia Rossi;Philip Branch;Grenville Armitage

  • Affiliations:

  • Swinburne University of Technology, Hawthorn, Australia;Swinburne University of Technology, Hawthorn, Australia;Swinburne University of Technology, Hawthorn, Australia

  • Venue:
  • Proceedings of the 21st international workshop on Network and operating systems support for digital audio and video
  • Year:
  • 2011

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Abstract

Geolocation of IP addresses is used for determining authenticity of webpages, delivering specific country or location related content and advertisements, or to add security for online transactions. Although IP geolocation databases exist, it is sometimes useful to validate their entries or create new, independent databases using independent sources of information. We propose and demonstrate a method whereby collecting and analyzing online game server discovery traffic over short periods of time can allow us to detect in which timezone a certain prefix or AS is located. Our method provides very good estimates of various AS timezones which we verify using publicly available IP geolocation databases.